Burner mount for oil burning locomotives



Feb. 13, 1940. N L. K. BOTTERON BURNER MOUNT FOR OIL BURNING L0 Filed Oct. 24, 1938 I COMOTIVES 28 I 3nventor Bu p 3 suing from, the burner,

into the wall from. the outer side. It is difiicult i4 and flares in both directions from a narrowed 0 Patented Feb. 13, 1940 a v I N STATES PATENT OFFICE l BE JRNER MOUNT FOROIL BURNING LOCOMOTIVES Leonard K. Botteron, Omaha, Nebr. Application October 24, [1938, Serial No. 236,770

I 1 Claim. (c1. s a V a This invention relates to mounts for oil burners with 'fire brick of ordinary fbrm, p r of which for locomotive fire pans. In such devices the oil areindicated at l2. The open through wh ch. is atomizedby' steam and burned in suspension in the burneracts is surrounded-by four identical a current of air induced by the steam blast ispec a b icks i a generally a 3, and

v i shown in perspectivein Fig. 3. The form of these 5 1 v The usual burner casting is rectangular in bricks can be described more readily after deshape and is usually surrounded by ordinary fire scribing the form of the mounting tube with brick of rectangular form (2 5x4 x 9"). which they interlock. i I The burner casting projects about four inches This tube is generally indicated by the numeral to fit the brick tightly aroundthe burner casting portion indi'cated at i5. Thus, thej tube may be and impossible to maintain tightness, so that described as a Venturi through which the burner the bricks soon become loosened around the casttube [6 jpr l fi ax a ly, the-burner, head ll being a ing. The resulting exposure of the casting to inward from the throat i5 and projecting slightly 15 heat leads to warping and burning. beyond the inner end of the tube I4, as clearly .15

Furthermore, a rectangular opening is not favshown in Fig. 1. This tube has an externalfiange ,orable to satisfactory air flow, and those which l8 stifiened by t Webs gusseiis W and'fitt e have heretofore been used are not equipped with against the plate 1 around a opening formed n adequate burner aligning means. that plate to receive the tube. The flange has so The invention provides a Venturi tube mounted bolt holes 20. 1 a on the external structural elements of the fire The flange i8 carries at its upper portion a pan andequipped with releasable means for supboss or enlargement 2! through which a clampporting the burner and aligning it substantially ing screw 22 with lock nut 23 isthreaded. A pad on the longitudinal axis of the Venturi tube. The 24 beneath the clamping screw 22 serves as a invention also contemplates an interlock between seat for the burner l6 and is sustained Within the 25 the inner end of the Venturi tube and bricks tube by two horizontal webslb and a vertical forming a portion of the lining of the fire pan and web 26. At the entrance end of the tube, and surrounding the burner opening. This interlock supported at a slightly lower elevation than the is so contrived that four identical special bricks pad 24 is a second pad 2'! whichis sustained byv of simple form may be used, the tube acting to two horizontal webs 28 and a vertical web 29. 3D retain the bricks and the bricks housing the end The parts 2e to 29 are all cast integrally with the of the tube sufficiently to protect it from destructube l4. tive heat. The burner tube to has a fueloil supply pipe 3| A commercial embodiment of the invention is and a steam supply pipe 32, and these pipes are 3;; illustrated in the accompanying drawing, in clamped. between notched retaining plates 33, one t which: above and one below and another between the Figure 1 is a vertical axial section through the pipes. The clamping force is developed by two Venturi tube mounted in thewall of a fire pan bolts 35 which pass through the plates 33 and of conventional form except for the presence of through the holes 35 in the pad 21. These bolts the special interlocking brick. A conventional are provided with nuts 35, as clearly shown in 40 burner is shown in elevation with its steam and Fig. l. a oil connections, to indicate how such a burner is The tube M has at its inner endan outwardly supported. j extending flange 37 which enters but does not Fig. 2 is a perspective view of the Venturi tube closely fit an annular groove 38 formed in the l5 looking at'the outer end thereof. special bricks l3. These four bricks are as- Fig. 3 is a perspective view on a smaller scalesembled and mate on planes which are diametthan Fig. 2 showing the'configurationof one of rical with reference to the longitudinalaxis of the special interlocking bricks. the tube l t, and thus form the continuous cir- The plates 8, l and 8 are merely portions of the cular groove 38 which receives the flange 31 and usual sheathing of the lire pan which together a clearance space 39 which receives with mod- 50 i with the angle comprise portionsof the housing. crate clearance the inner end of the tube l4, all and sustaining portion of the fire pan. The lower as clearly shown in Fig. 1. i portion of the pan has a lining comprising fire It will be observed, also, that the brickslS are bricks indicated at H, and the vertical wall so formed as to produce at ila flaring continu V through which the burner delivers its blast is lined ation of the opening through the tube l4, this 55 opening being further flared by the terminal bevel 42. The bricks I3 are further beveled or filleted as indicated at 43, the purpose being to avoid fragile edges at a point where close fit with the burner tube I4 is not required.

As will be readily appreciated from a consideration of Fig. 1, the structure afiords a combining tube through which air is drawn from outside the fire pan by the blast action of the burner. The fire bricks 13 provide a smooth continuation of this combining tube to the inner margin of the brick wall, and since the end of the tube [4 is housed within the ring formed by the bricks l3, it is protected from the direct action of theqflame which, of course, is projected inward fromv head I! into the fire pan. The flange 3'! interlocks with the bricks I 3 and assists in holding them in place. It will be understood that the holes Zll in flange l8 receive attaching. bolts which connect the flange with plate i, so that the brick lining does not sustain the tube. The pads 24 and 21 provide a convenient mounting for the burner which .ensures a rigid aligning support from which the burner can be readily released and withdrawn.

The feature of using four identical special bricks reduces expense, and the interlock not only reduces the tendency for loosening to occur but also reduces the degree of exposure entailed by loosening of the bricks, should this occur. While special bricks can be used with a rectangular burner tube, practical considerations not encountered where the tube is circular require the use of several different forms of special brick in a single mount where the tube is rectangular. As

a practical matter, therefore, the round opening permits the use of a single form of special brick instead of four, which would be necessary with burner tubes of the prior art.

The invention provides a simple unitary structure which sustains the protecting brick around the burner, offers a satisfactory entrance duct for combustion air, and a convenient releasable mount for the burner itself. While the structure of all the parts has been described in considerable detail, it will be understood that modifications within the scope of the claims are contemplated, and that the particular burner illustrated is selected merely as typical of any burner suitable foruse in locomotive fire pans.

What is claimed is:-

The combination of a burner pan having a refractory lining composed of rectangular bricks and having an opening for the reception of a burner head produced by a symmetrical rectangular assemblage of four identical bricks forming part of said wail, each brick being rectangular in face elevation and formed with a quadrant cut away at one corner such quadrants forming a circular opening through such assemblage; an independently supported burner tube projecting from the outer side of said wall part way through said opening and mating at its inner side with said opening; and means for supporting and aligning a burner in said tube.

LEONARD K. BO'I'TERON. 

